EP0381860B1 - Machine de nettoyage pour fibres textiles - Google Patents

Machine de nettoyage pour fibres textiles Download PDF

Info

Publication number
EP0381860B1
EP0381860B1 EP89123948A EP89123948A EP0381860B1 EP 0381860 B1 EP0381860 B1 EP 0381860B1 EP 89123948 A EP89123948 A EP 89123948A EP 89123948 A EP89123948 A EP 89123948A EP 0381860 B1 EP0381860 B1 EP 0381860B1
Authority
EP
European Patent Office
Prior art keywords
roller
cleaning machine
guide plates
transfer chambers
chambers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89123948A
Other languages
German (de)
English (en)
Other versions
EP0381860A2 (fr
EP0381860A3 (en
Inventor
René Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0381860A2 publication Critical patent/EP0381860A2/fr
Publication of EP0381860A3 publication Critical patent/EP0381860A3/de
Application granted granted Critical
Publication of EP0381860B1 publication Critical patent/EP0381860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/04—Opening or cleaning fibres, e.g. scutching cotton by means of beater arms

Definitions

  • the invention relates to a cleaning machine for textile fibers transported in a conveying air flow, with a horizontal roller with impact elements and a predetermined diameter, under the underside of which bar grids are arranged and over the top of which an inlet and an outlet are located at one end of the roller for the air flow and between the inlet and the outlet transfer chambers are arranged, which are delimited by guide plates, which form an acute angle of inclination with a plane perpendicular to the roll axis, as well as by approximately vertical side walls and adjoining cover walls, and which limit the air flow rotating around the roll axis forward each about their own axial width in the axial direction, the cover walls being arranged like a terrace roof and enclosing obtuse angles with one another and with the side walls.
  • At least one such cleaning machine is known from French patent no. 1220618 and available on the market. It serves to dissolve the fiber flakes supplied in the conveying air flow and to remove impurities from them. In the known machine, however, the dissolving effect and the production, in kg / h for a given size of the roller, are not always completely satisfactory.
  • the object of the invention is to design the cleaning machine specified at the outset in such a way that the dissolving effect is improved and higher production is made possible.
  • the cleaning machine according to the invention is therefore characterized in that at least four guide plates are present, which delimit at least three transfer chambers, and in that the ascending angle, which the guide plates form with a plane perpendicular to the roller axis, is between 8 and 20 ° is preferably between 10 and 17 °.
  • the pitch angle which the guide plates form with a plane perpendicular to the roll axis is smaller than in the known machine, and it has surprisingly been found that the tendency towards clumping in the transfer chambers decreases with a decreasing pitch angle.
  • the pitch angle should not be chosen too small, since otherwise there is a risk of constipation. Suitable pitch angles are between 8 and 20 °, preferably between 10 and 17 °.
  • the larger number of transfer chambers also reduces the axial width of the individual transfer chambers, which also counteracts the accumulation of larger quantities of flakes in the transfer chambers.
  • the axial width of the transfer chambers naturally also depends on the length of the roller. If this length is relatively large, each transfer chamber can expediently be divided into subchambers by at least one partition wall parallel to the guide plates. As a result, the flake stream is divided into smaller sub-streams when hiking through the transfer chambers.
  • the obtuse angles mentioned can be in the range from 120 to 140 ° and the uppermost of the covering walls can be one from the peripheral surface of the roller
  • the obtuse angles mentioned can be in the range from 120 to 140 ° and the uppermost of the covering walls can be one from the peripheral surface of the roller
  • the cleaning machine shown in FIGS. 1 and 2 has a horizontal opening roller 1, which is rotatably mounted about its axis A in a housing 2 and the circumference of which is occupied with striking pins 3 in the usual way.
  • the roller 1 is rotated in operation by a drive motor, not shown, in the direction of the arrow.
  • Two rod grids 4, 5 are arranged under the underside of the roller 1.
  • the housing 2 Above the top of the roller 1, the housing 2 has an air inlet 6 at one end of the roller and an air outlet 7 at the other end of the roller.
  • the positions of the inlet 6 and the outlet 7, which are not visible here, are each different indicated by a broken line.
  • baffles 8, 9, 10, 11, 12, 13 are arranged in the housing 2, which are inclined to the roller axis A, so that they have a predetermined, with a plane E perpendicular to this axis A, form acute slope angle ⁇ described below.
  • the six baffles limit over the top of the roller 1 between the inlet 6 and the outlet 7 five transfer chambers 14, 15, 16, 17, 18, which each around the air flow rotating around the roller 1 by about its own axial width b of 5 to 15 cm in the axial direction hand off.
  • the transfer chambers 14, 15, 16, 17 and 18 are also limited by housing walls running parallel to the roller axis A, namely by two approximately vertical side walls 21 and 22 and three cover walls 23, 24 and 25 adjacent to them.
  • the cover walls 23, 24 and 25 are arranged in the shape of a terrace roof, i.e. they form three sides of an isosceles trapezoid in vertical section, and they form obtuse angles ⁇ and ⁇ or ⁇ and ⁇ with one another and with the side walls 21 and 22, which are 120 to 140 °, preferably 135 each °.
  • the top, approximately horizontal cover wall 24 has a distance H from the peripheral surface of the roller 1, which is the same 1 12th to 1 5 preferably about 1 7 of the diameter D of the roller 1.
  • the cleaning machine is supplied with textile fibers to be cleaned and dissolved in flake form in a conveying air flow through the inlet 6.
  • the conveying air with the fibers flows essentially six times around the underside of the roller 1 and between them one after the other through the five transfer chambers 14, 15, 16, 17, 18 above the top of the roller 1 and finally through the outlet 7 to the housing 2 leave.
  • the flakes of fiber are processed and increasingly dissolved by the striking pins 3 and grids 4 and 5, and contaminants are separated from the fibers, separated by the grids 4 and 5 and then removed by a suction line 19.
  • the fibers are then flung upwards into the next transfer chamber.
  • the cleaning machine according to the invention contains at least four baffles or three transfer chambers, preferably six baffles and five transfer chambers as shown.
  • baffles or nine transfer chambers should generally not be used, because otherwise the angle ⁇ , which the baffles form with the plane E perpendicular to the roller axis A, can become too small.
  • a small angle .alpha. Has been found to be favorable for avoiding the formation of fiber lumps, but there is a risk of the transfer chambers becoming blocked if the angle .alpha. Becomes too small.
  • the angle ⁇ can expediently be between 8 and 20 °, preferably between 10 and 17 °.
  • FIGS. 3 and 4 show in a view similar to FIG. 2 each a cleaning machine in which the roller 1.1 or 1.2 is longer than the roller 1 in FIG. 2.
  • the cleaning machines according to FIGS. 3 and 4 again contain the six Baffles 8, 9, 10, 11, 12, 13, which limit the five transfer chambers 14, 15, 16, 17, 18. Due to the greater length of the rollers 1.1 and 1.2, the inclination angle ⁇ of the guide plates is also correspondingly larger, but its size is still in the range specified above (8 to 20 °, preferably 10 to 17 °). At the same time, due to the greater length of the rollers 1.1 and 1.2, the axial width b.1 and b.2 of each of the transfer chambers 14, 15, 16, 17, 18 in Fig. 3 and 4 become larger.
  • each of the transfer chambers is therefore divided into two subchambers 14.1, 15.1, 16.1, 17.1, 18.1 by a partition wall 20 parallel to the guide plates.
  • the axial width bt of each sub-chamber is thus only about half as large as the axial width bl of the transfer chambers.
  • each of the transfer chambers is divided into three partial chambers by two partition walls 20 parallel to the guide plates, the axial width bt of which is still approximately equal to one third of the width b.2 of the transfer chambers.
  • the width of the subchambers should not be greater than about 15 cm, it can usefully be 5 to 15 cm. Due to the partition walls 20, the conveying air flow or flock flow is divided into smaller flows in each transfer chamber, thus reducing the risk of fiber clumping accordingly.
  • the dissolution of a lump twice as large offers more than double difficulties because the networking in the larger lump is more intensive.
  • Another feature of the cleaning machine described which also helps to avoid the formation of larger clumps of fiber, is the fact that the air inlet 6 is arranged in such a way that the conveying air flow entering through it and transporting the fiber flakes is tangential to the opening roller 1 from top to bottom runs in such a way that the air flow at the point where it meets the circumference of the roller has the same direction of movement as the circumference of the rotating roller 1.
  • the striking pins 3 on the roller 1 should therefore not move counter to the incoming conveying air stream.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (10)

  1. Machine de nettoyage pour des fibres textiles tranportées dans un courant d'air de transport, avec un rouleau (1) couché, ayant un diamètre (D) prédéterminé, garni d'éléments de battage (3), sous le côté inférieur duquel des barreaux de grille (4, 5) sont disposés, et au-dessus du côté supérieur duquel sont disposées, une entrée (6) à une extrémité du rouleau (1) et une sortie (7) pour le courant d'air à l'autre extrémité et des chambres de transition (14, 15, 16, 17, 18) entre l'entrée (6) et la sortie (7), chambres qui sont délimitées par des plaques de guidage (8, 9, 10, 11, 12, 13) lesquelles forment un angle d'inclinaison aigu (α) avec un plan (E) perpendiculaire à l'axe de rouleau (A), ainsi que par des parois latérales à peu près verticales (21, 22) et des parois de recouvrement (23, 24, 25) adjacentes à celles-ci, et qui transmettent chacune le courant d'air tournant autour de l'axe de rouleau (A) d'à peu près leur propre largeur axiale (b) dans la direction axiale, et où les parois de recouvrement (23, 24, 25) sont disposées en forme de toit en terrasses et forment des angles obtus (β, γ , δ, ε) entre elles ainsi qu'avec les parois latérales (21, 22).
    caractérisé par le fait
    qu'il y a au moins quatre plaques de guidage (8, 9, 10, 11, 12, 13) qui délimitent au moins trois chambres de transition (14, 15, 16, 17, 18), et que l'angle d'inclinaison (α) que forment les plaques de guidage (8, 9, 10, 11, 12, 13) avec un plan (E) perpendiculaire à l'axe de rouleau (A), est compris entre 8 et 20°, de préférence entre 10 et 17°.
  2. Machine de nettoyage selon revendication 1.
    caractérisée par le fait que
    trois à neuf chambres de transition (14, 15, 16, 17, 18) sont existantes, lesquelles sont délimitées par quatre à dix plaques de guidage (8, 9, 10, 11, 12, 13).
  3. Machine de nettoyage selon revendication 2,
    caractérisée par le fait que
    quatre à sept, de préférence cinq chambres de transition (14, 14, 15, 16, 17, 18) sont existantes, lesquelles sont délimitées par cinq à huit, de préférence six plaques de guidage (8, 9, 10, 11 , 12, 13).
  4. Machine de nettoyage selon une des revendications 1 à 3,
    caractérisée par le fait que
    la largeur axiale (b) des chambres de transition (14, 15, 16, 17, 18) se situe entre 5 et 15 cm.
  5. Machine de nettoyage selon une des revendications 1 à 3,
    caractérisée par le fait
    qu'une chambre de transition (14, 15, 16, 17, 18) est compartimentée en chambres partielles par au moins une paroi de compartimentage (20) parallèle aux plaques de guidage (8, 9, 10, 11, 12, 13).
  6. Machine de nettoyage selon revendication 5,
    caractérisée par le fait que
    la largeur axiale de chaque chambre partielle (14.1 - 18.1; 14.2 - 18.2) se situe entre 5 et 15 cm.
  7. Machine de nettoyage selon une des revendications 1 à 6,
    caractérisée par le fait que
    l'entrée d'air (6) est disposée de telle sorte que l'air amené s'écoule à peu près tangentiellement à un côté du rouleau (1), côté qui se meut dans la même direction que l'air amené, lors de la rotation du rouleau.
  8. Machine de nettoyage selon revendication 7,
    caractérisée par le fait que
    l'entrée d'air (6) est disposée de telle sorte que l'air amené s'écoule depuis le haut vers le bas contre ledit côté du rouleau (1).
  9. Machine de nettoyage selon une des revendications 1 à 8,
    caractérisée par le fait que
    lesdits angles obtus (β, γ, δ, ε) se situent dans la zone de 120 à 140°, et possèdent de préférence à peu près 135°.
  10. Machine de nettoyage selon une des revendications 1 à 9,
    caractérisée par le fait que
    la paroi de recouvrement (24) la plus élevée possède une distance (H) par rapport à la surface circonférentielle du rouleau (1), qui équivaut la 1/2 au 1/5 du diamètre (D) du rouleau (1), de préférence le 1/7.
EP89123948A 1989-01-31 1989-12-27 Machine de nettoyage pour fibres textiles Expired - Lifetime EP0381860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH319/89 1989-01-31
CH31989 1989-01-31

Publications (3)

Publication Number Publication Date
EP0381860A2 EP0381860A2 (fr) 1990-08-16
EP0381860A3 EP0381860A3 (en) 1990-08-22
EP0381860B1 true EP0381860B1 (fr) 1996-02-07

Family

ID=4184314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123948A Expired - Lifetime EP0381860B1 (fr) 1989-01-31 1989-12-27 Machine de nettoyage pour fibres textiles

Country Status (4)

Country Link
US (1) US4969237A (fr)
EP (1) EP0381860B1 (fr)
JP (1) JP2839616B2 (fr)
DE (1) DE58909599D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101052759B (zh) * 2004-11-04 2016-03-30 里特机械公司 纤维絮清洁设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681457A5 (fr) * 1990-03-23 1993-03-31 Rieter Ag Maschf
EP0464441A1 (fr) * 1990-07-02 1992-01-08 Maschinenfabrik Rieter Ag Procédé et installation pour le nettoyage de fibres de coton
US5237727A (en) * 1990-07-02 1993-08-24 Maschinenfabrik Rieter Ag Adjustable cleaning of fibers in a spiralled air path and apparatus
EP0810309B1 (fr) 1996-05-20 2004-09-29 Maschinenfabrik Rieter Ag Installation pour le traitement de fibres
DE19630018A1 (de) * 1996-07-25 1998-01-29 Rieter Ag Maschf Anlage zum Verarbeiten von Fasern
DE19716792A1 (de) * 1997-04-22 1998-10-29 Rieter Ag Maschf Spinnereivorbereitungseinrichtung
CH702443A1 (de) 2009-12-17 2011-06-30 Rieter Ag Maschf Reinigungsvorrichtung für Faserflocken.
CH713995A2 (de) 2017-07-17 2019-01-31 Rieter Ag Maschf Reinigungsvorrichtung.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE419849C (de) * 1925-10-12 Peter Driessen Fa Putzwoll-Streckmaschine
DE804887C (de) * 1947-03-26 1951-05-04 Ferdinand Bernard Rossmark Vorrichtung zur Reinigung von Kapok
DE1094640B (de) * 1956-06-11 1960-12-08 U Appbau Hergeth K G Maschf Stufenreiniger fuer Fasergut, insbesondere Baumwolle
US3042976A (en) * 1957-08-02 1962-07-10 Johns Manville Fiber opening and cleaning
FR1220618A (fr) * 1958-05-12 1960-05-25 Rieter Joh Jacob & Cie Ag Nettoyeuse-ouvreuse à tambour unique
US4102017A (en) * 1976-03-08 1978-07-25 Foerster Process Systems, Inc. Cotton lint cleaner
FR2360694A1 (fr) * 1976-08-03 1978-03-03 Schubert & Salzer Maschinen Dispositif d'elimination des souillures d'une matiere premiere en fibres, en particulier du coton
DE2826908A1 (de) * 1977-06-24 1979-01-18 Platt Saco Lowell Ltd Vorrichtung zum oeffnen und reinigen von fasermaterial und verfahren zum abscheiden von staub aus fasermaterial
AU534972B2 (en) * 1980-07-01 1984-02-23 Ronald Thomas Anderson Wool cleaning beater
US4479286A (en) * 1981-10-15 1984-10-30 The United States of America as represented by the Secretary of _Agriculture Apparatus to extract fine trash and dust during high-velocity discharging of cotton from opener cleaner
US4637096A (en) * 1985-10-18 1987-01-20 Wise Industries, Inc. Method and apparatus for cleaning cotton
DE3540259C2 (de) * 1985-11-13 1995-05-11 Truetzschler Gmbh & Co Kg Vorrichtung zum Abscheiden von aus Spinnereimaschinen, insbesondere Putzereimaschinen und Karden, abgesaugtem Faserabfall u. dgl. Verunreinigungen
DE3615416A1 (de) * 1986-05-07 1987-11-12 Truetzschler & Co Vorrichtung zur reinigung von textilfaserflocken
DE3711642A1 (de) * 1987-04-07 1988-10-27 Hollingsworth Gmbh Vorrichtung zum feinoeffnen und reinigen von fasermaterial u. dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101052759B (zh) * 2004-11-04 2016-03-30 里特机械公司 纤维絮清洁设备

Also Published As

Publication number Publication date
US4969237A (en) 1990-11-13
DE58909599D1 (de) 1996-03-21
EP0381860A2 (fr) 1990-08-16
EP0381860A3 (en) 1990-08-22
JPH02234919A (ja) 1990-09-18
JP2839616B2 (ja) 1998-12-16

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